{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "trigger": true, "arguments": ["Treatment.Duration", "Subject", "Subject.Age", "Treatment.Disorder", "Subject.Race", "Treatment", "Treatment.Route", "Subject.Disorder", "Treatment.Freq", "Effect", "Subject.Gender", "Combination.Drug", "Treatment.Drug", "Subject.Population"]}, {"event_type": "potential therapeutic event", "trigger": true, "arguments": ["Treatment.Drug", "Effect", "Subject.Disorder", "Treatment.Route", "Treatment.Time_elapsed", "Subject.Population", "Subject.Gender", "Treatment.Freq", "Subject.Race", "Treatment.Dosage", "Subject", "Treatment"]}], "input": "While the introduction of carmustine wafers (Gliadel wafers) into the tumor resection cavity has been shown to be a beneficial therapy for malignant glioma, it is recognized that clinically significant cerebral edema is a potential adverse effect."}
{"adverse event": [{"trigger": "adverse ", "arguments": {"Treatment.Duration": "NAN", "Subject": "NAN", "Subject.Age": "NAN", "Treatment.Disorder": "malignant glioma", "Subject.Race": "NAN", "Treatment": "the introduction of carmustine wafers (Gliadel wafers) into the tumor resection cavity", "Treatment.Route": "NAN", "Subject.Disorder": "NAN", "Treatment.Freq": "NAN", "Effect": "significant cerebral edema", "Subject.Gender": "NAN", "Combination.Drug": "NAN", "Treatment.Drug": "carmustine wafers", "Subject.Population": "NAN"}}], "potential therapeutic event": []}